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In how many ways we can wear three rings in the four fingers?

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posted Jun 17 by anonymous

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2 Solutions

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If all the rings are similar and the order in which they were worn isn't counted then there are 4C3 ways the rings can be worn or 4 ways. This is true if there is no choice in picking the four fingers from 5 of each hand. If it is to be considered then there are 5C4*4C3 ways to wear the ring ie., 5*4 = 20 ways.

solution Jun 17 by Tejas Naik
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64 using permutation (4^3)

solution Jun 19 by anonymous

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